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  <a name="EN-US_TOPIC_0000002199997993"></a><a name="EN-US_TOPIC_0000002199997993"></a>
  <h1 class="topictitle1">Step 4: Registering a PDB Set (Applicable to 1.6.0 and Later Versions)</h1>
  <div>
   <p>This section describes how to register a PDB set when the object to be protected is a container database (CDB) or PDB set in a multi-tenant environment.</p>
   <div class="section">
    <h4 class="sectiontitle">Context</h4>
    <p>Only Oracle 12c and later versions support the CDB and PDB. In the multi-tenant environment, one CDB can carry multiple PDBs.</p>
   </div>
   <div class="section">
    <h4 class="sectiontitle">Prerequisites</h4>
    <ul>
     <li>You have registered the database with the <span>product</span> by referring to <a href="en-us_topic_0000002209175821.html">Step 3: Registering an Oracle Database</a>.</li>
     <li><span id="EN-US_TOPIC_0000002199997993__ph726173316142">Ensure that the multi-tenant environment is configured for the Oracle instance. Otherwise, there will be no PDB available for the PDB set registration task. You can run the SQL statement <strong id="EN-US_TOPIC_0000002199997993__b9211112135015">SELECT cdb FROM v$database</strong> to query whether the multi-tenant environment is configured for the current Oracle instance. In the command output, value <span class="uicontrol" id="EN-US_TOPIC_0000002199997993__uicontrol10762145114811"><b>yes</b></span> indicates that the multi-tenant environment is configured for the current Oracle instance, and value <span class="uicontrol" id="EN-US_TOPIC_0000002199997993__uicontrol1659611961514"><b>no</b></span> indicates that the multi-tenant environment is not configured, that is, no PDB set exists.</span></li>
    </ul>
   </div>
   <div class="section">
    <h4 class="sectiontitle">Procedure</h4>
    <ol>
     <li><span>Choose <span class="uicontrol" id="EN-US_TOPIC_0000002199997993__en-us_topic_0000002199964685_uicontrol49641842919"><b><span id="EN-US_TOPIC_0000002199997993__en-us_topic_0000002199964685_text63901566195"><strong>Protection</strong></span> &gt; Databases &gt; Oracle</b></span>.</span></li>
     <li><span>Switch to the <span class="uicontrol"><b>PDB Sets</b></span> tab page and click <span class="uicontrol"><b><span>Register</span></b></span>.</span><p></p><p><a href="#EN-US_TOPIC_0000002199997993__table17561557152715">Table 1</a> describes the related parameters.</p>
      <div class="tablenoborder">
       <a name="EN-US_TOPIC_0000002199997993__table17561557152715"></a><a name="table17561557152715"></a>
       <table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000002199997993__table17561557152715" frame="border" border="1" rules="all">
        <caption>
         <b>Table 1 </b>Parameters for registering a PDB set
        </caption>
        <colgroup>
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          <th align="left" class="cellrowborder" valign="top" width="31.4%" id="mcps1.3.4.2.2.2.2.2.3.1.1"><p>Parameter</p></th>
          <th align="left" class="cellrowborder" valign="top" width="68.60000000000001%" id="mcps1.3.4.2.2.2.2.2.3.1.2"><p>Description</p></th>
         </tr>
        </thead>
        <tbody>
         <tr>
          <td class="cellrowborder" valign="top" width="31.4%" headers="mcps1.3.4.2.2.2.2.2.3.1.1 "><p>Name</p></td>
          <td class="cellrowborder" valign="top" width="68.60000000000001%" headers="mcps1.3.4.2.2.2.2.2.3.1.2 "><p>Name of the PDB set resource to be protected. The value can be customized.</p></td>
         </tr>
         <tr>
          <td class="cellrowborder" valign="top" width="31.4%" headers="mcps1.3.4.2.2.2.2.2.3.1.1 "><p>Databases</p></td>
          <td class="cellrowborder" valign="top" width="68.60000000000001%" headers="mcps1.3.4.2.2.2.2.2.3.1.2 "><p>Database where the PDB set to be backed up resides.</p></td>
         </tr>
         <tr>
          <td class="cellrowborder" valign="top" width="31.4%" headers="mcps1.3.4.2.2.2.2.2.3.1.1 "><p>Nodes</p></td>
          <td class="cellrowborder" valign="top" width="68.60000000000001%" headers="mcps1.3.4.2.2.2.2.2.3.1.2 "><p>This parameter is displayed when the selected database is deployed in cluster mode.</p> <p>Select the Oracle node where the PDB set to be backed up resides for registration.</p></td>
         </tr>
        </tbody>
       </table>
      </div> <p></p></li>
     <li><span>In the <strong>Available PDBs</strong> area, select the PDBs to be backed up. You can view the selected PDBs in the <strong>Selected PDBs</strong> area.</span><p></p>
      <div class="note">
       <img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span>
       <div class="notebody">
        <p>If you select all PDBs in the database instance, the system automatically identifies <strong>PDB</strong> for the PDB set as <strong>CDB</strong>.</p>
       </div>
      </div> <p></p></li>
     <li><span>Click <span class="uicontrol"><b>OK</b></span>.</span></li>
    </ol>
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     <strong>Parent topic:</strong> <a href="en-us_topic_0000002199963553.html">Backing Up an Oracle Database</a>
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